Vehicle-wheel rim.



I H. WAGEIIIIQHSI 'VEHICLE WHEEL RIM.

APPLICATION FILED Nov. 24, I9I5.

of the bolt toward the head of the nut'. When the Wedge portion 10 has cleared the edge of the felly band, the clamp will automatically rotate with the bolt through a half revolution, it 'being stopped in inverted position by the engagement of the shoulder 21 formed thereon with the lug 18, as shown at the right in Fig. 2. The rim is then free' to be removed. `After the rim has been replaced, it is clamped in position by rotating the bolt 12 in the opposite direction, which will first carry the clamp into erect position, and thus cause the clamp to travel along the threaded portion 1]. of the bolt, While the bolt itself screws into the plate 14. The combined action of the two oppositely threaded portions of the bolt thus produces a quick Hight of the clamp and rapidly draws the clamp into tight wedgng engagement with the parts.

Having thus described thel preferred embodiment of my invention, but Without desring to limit myself thereto, since I regard the particular bolt and clamp combination described as broadly new, I claim:

1. In a vehicle wheel, a bolt for securing a demountable rim keeper to a fixed rim, said bolt having a screw-threaded portion adjacent each end, the threads of one portion being of a pitch opposite to those of the other portion, one portion being adapted to engage said keeper and the other portion being adapted`to engage said fixed-rim, the rotation of said bolt in one direction causing it to advance' toward said fixed rim and simultaneously to cause said keeper to approach said fixed rim at a speed equal to the travel of the bolt plus the travel of the keeper thereon.

2. In a vehicle Wheel, means for removably securing a demountable 'rim thereto comprising keepers upon opposite sides of the Wheel, and a bolt adapted simultaneously to engage With said keepers, and to draw them together by its rotation in one direction, said bolt having a screw-threaded portion adjacent each end, the threads of one portion being of a pitch opposite to those of the other portion.

3. In a vehicle Wheel, a fixed rim, keepers upon. opposite sides thereof, and a bolt adapted simultaneously to engage said keepers, and to cause their mutual approach by its rotation, said bolt having a screw-threaded portion adjacent each end, the threads of one portion being of a pitch opposite to those o the other portion.

4. In a vehicle Wheel, means for securing a demountable rim thereto comprising a rotatable bolt having'at one end an external thread engaging a complementally-threaded member on the Wheel and having adjacent its other end a second external thread of opposite pitch, and an internally-threaded rim clamp engaging the second thread, the

rotation of saidvbolt in one direction causgether, rotation in the opposite direction causing them mutually to recede.

5. In a vehicle Wheel, the combination With a felly and a demountable rim thereon of a rotatable bolt having a right-hand external thread engaging a complementallythreaded member atlixed to one side of the felly, and also having. a left-hand external thread, engaging a complementally threaded member riding on said bolt at the opposite side of the felly removable by rotation of the bolt to irst Withdraw the clamp axially from the rim and then rotate it out of operative position, and a stop on the felly for limiting said rotative movement of the clamp. a

6. The combination with a vehicle wheel of a tire-carrying rim mounted on the periphery thereof, and .means for removably securing the rim upon the Wheel including a bolt carried by the. Wheel near the periphery thereof, and substantially parallel with its axis, said bolt having an end portion provided With a screw-thread and an intermediate portion provided With. a screw thread, said threads being of opposite pitch, said bolt having a head by Which the same may be rotated, the threaded end portion of said bolt screwing into an internally threaded opening in a portion of said Wheel, and a clamp adapted to engagea portion of the removable tire-carrying rim, said clamp screwing on the intermediate threaded portion of said bolt.

7. In a vehicle wheel, in combination, a felly, a felly band thereon, a tire-carrying rim removably mounted on said felly band, said felly having a plurality of spaced holes extending transversely therethrough, a corresponding series of plates secured to the back of said felly having screw-threaded holes therethrough. alined With the holes through the felly, and a plurality of bolts extending 'through the holes through said felly each having a screw-threaded end screwing into the hole in its opposite plate, one end of each bolt being provided with a head by Which the same may be rotated, the headed end of each bolt projecting beyond the front of said felly, said projecting portion of the bolt being provided with a thread of opposite pitch from the thread` at the end of said bolt, and a plurality of clamps adapted to engage portions of the removable tirecarrying rim, said clamps screwing l upon said projecting threaded portions of said bolts.

said Wheel near the periphery thereof, said bolt being substantially parallel with the axis of said wheel, the end of said bolt being screw-threaded and Soren/ing into a threaded opening,` in a portion of the said Wheel, the opposite end of said bolt projecting beyond the front side of said Wheel, the projecting portion of said bolt being provided with a thread of opposite pitch from the thread at the end of said bolt, said bolt being provided With a head by which the same :may be rotated, and an eccentric clamp screwing on the threaded projecting portion of said bolt, said clamp being rotatable about said bolt through a part of a revolution and being adapted to engage a portion of said removable tire-carrying rim when rotated in operative position, Said clamp lying outoi3 the path of any portion of said removable tirecarrying rim When rotated to inoperative position.

JAMES H. WAGENHORST.

Copies of thisi patent may be obtained for ve cents each, by addressing the "Commissioner of ratents, Washington, ZD. G. 

